Improvement in copying-presses



R; EQK-IDDER.

COPYING-P muss.

No .'188,4.69.- Patented March-20.1871

N-PETERS, FHOTO-Ui'HOGRAFNER, WASHINGTON. D, C,

UNITED STATES PATENT QFFICE.

' RICHARD KIDDER, or WORCESTER, MASSACHUSETTS, ASSIGNORTO ISAAC R.JOSLIN, OF NEW YORK-CITY.

IMPROVEMENT IN COPVlNG-PRESSES.

Specification forming part of Letters Patent No. I 88,469, dated March20, 1877; application filed October 12, 1876.

To all whom it may concern Be it known that I, RICHARD E. KIDDER, of thecity and county of Worcester, in the State of Massachusetts, haveinvented certain Improvements in Copying-Presses, of which the followingis a specification, due reference being bad to the accompanying drawingsby the letters of reference marked there My invention relates moreparticularly to copying-presses used for copying letters and similarpurposes. It consists in adapting certain adjustable devices to controlthe relative action of the bed and platen, together with theconstruction of coacting parts necessary to promote its efficiency.

111 the accompanying drawings, Figure l is a perspective view, and Fig.2 an end view;

showing a swivel and lever as in the operation of adjustment, the sameletters indicating the same parts wherever they occur.

A is the bed, holding the standards or screws D D firm at each end;B,the platen, having ears to guide it on the screws D D. I l are itslegs, at each corner. 0 O are swivels or sockets, made adjustable on thescrews D D by a thread cut in each, or with nuts, or a set-screw, tohold them in place, and each having-a cam-lever, E E, pivoted over theplaten, and bearing on each end of it, or, by

are two springs, to separate the bed Aand platen B when the cam-leversare turned 01T, these springs being adjustable bythe nuts G G, fittingon the screws D D. The legs I I support the whole, and .in operation thebed A rises when the cam -levers E E are turned down, and falls whenthey are turned up, the springs F F keeping the ends even; and whenthelegs I I are not used or are left off, the springs separate theplaten and bed by raising the former, in the usual way.

,I claim' l. The combination of thebed A-,-standards D D, havingadjustable sockets O O, carrying cam-levers, andthe platen B,substantially as and for the purposes set forth. v

2. 'l'he adjustable springsF F and their nuts, in com biuation with thesocket-bearingstandard D D, bed A, and platen B, as and for the purposesdescribed.

R. E. KIDDER,

Witnesses: f v

I. GRE N,

J. G. ARNOLD.

